NRH R7956-10-135 Heavy Duty Spring Pin Latch | 135mm SPCC for Industrial Cabinets

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Functional characteristics

NRH R7956-10-135, spring pin latch, heavy duty latch, 135mm latch, SPCC latch, blue zinc plating, cabinet lock, 10mm plunger, industrial hardware, server rack latch

The NRH R7956-10-135 is a substantial heavy-duty spring pin latch, engineered for robust and reliable manual fastening. As detailed in the specification sheet, it is constructed from durable SPCC steel and features a protective Blue Zinc Plating finish for corrosion resistance. The design incorporates a sturdy L-shaped pull handle connected to a powerful spring mechanism, offering straightforward, tool-free operation: pull the handle to retract the pin; release for automatic spring locking. Weighing a solid 183g with an overall length of 135.5mm, it is built for demanding applications requiring extended reach and strength. Proudly manufactured by NRH Box Hardware, a specialist since 1996, this product is produced under an ISO 9001:2000 certified quality management system and complies with SGS, REACH, RoHS, and SVHC standards. OEM/ODM services are available.

Primary Applications

This robust latch is designed for securing large and heavy-duty access points:

Large Industrial Cabinets & Server Racks: For doors on extra-large server cabinets, data center enclosures, and power distribution units.
Heavy Machinery & Equipment Guards: Primary latches for large machine tool enclosures, industrial welding equipment cases, and substantial safety guards.
Transportation & Logistics Cases: Secure closures for heavy-duty shipping containers, large equipment transit boxes, and flight cases.
Energy & Utility Enclosures: Doors on outdoor electrical cabinets, transformer enclosures, and telecommunications infrastructure boxes.

How It Works (Operating Principle)

The latch operates on a reliable spring-loaded principle. The internal compression spring holds the plunger pin firmly in the extended (locked) position.

To Unlock: Pull the L-shaped handle outward. This compresses the spring and fully retracts the pin, clearing the strike plate.
To Lock: Align the door and release the handle. The spring automatically drives the pin forward to engage the strike point, securing the door.

Features & Specifications

Extended 135.5mm Length: Provides a long reach for engaging deep-set or heavily insulated doors and panels.
Heavy-Duty 10mm Insert Rod: The 10mm diameter solid steel rod offers high shear strength for secure locking under load.
Durable SPCC with Blue Zinc: SPCC steel construction ensures strength, while Blue Zinc Plating provides effective corrosion protection.
Secure 4-Point Mounting: Designed with a reinforced base plate featuring 4x mounting holes (as per drawing) for an extremely stable installation.
High-Capacity Spring: Engineered for reliable operation and positive locking, even with heavy doors.

Technical Specifications

Item	Specification
Brand	NRH Box Hardware
Model Number	R7956-10-135
Product Name	Spring Pin Latch
Primary Material	SPCC Steel
Surface Finish	Blue Zinc Plating
Product Weight	183g
Insert Rod Diameter	10mm
Overall Length	135.5mm
Key Dimensions (from drawing)	Various dimensions including 50, 36, 60.5, 30, 13.2, 63.5, 12, 23, 52.4, 18.5, 2.5mm.
Mounting Holes	4x (pattern as per drawing)
Compliance	ISO 9001:2000, SGS, REACH, RoHS, SVHC
Additional Info	Manufacturer Since 1996. OEM/ODM Services Available.